Leukemia, Lymphocytic, Chronic, B-CellLeukemia, LymphoidPrecursor Cell Lymphoblastic Leukemia-LymphomaLeukemiaLeukemia, Myeloid, AcuteLeukemia, B-CellLeukemic InfiltrationAsparaginaseLeukemia, T-CellLeukemia, Myelogenous, Chronic, BCR-ABL PositiveVidarabinePrecursor B-Cell Lymphoblastic Leukemia-LymphomaLeukemia, Biphenotypic, AcuteB-LymphocytesMethotrexateBone MarrowRemission, SpontaneousLymphocytes, NullGene Expression Regulation, LeukemicCytarabineVincristine6-MercaptopurineImmunoglobulin Heavy ChainsLeukemia, ExperimentalLeukemia-Lymphoma, Adult T-CellRemission InductionAntineoplastic AgentsReceptors, Antigen, B-CellZAP-70 Protein-Tyrosine KinaseBurkitt LymphomaLymphomaChlorambucilLeukemia, Hairy CellPrognosisRosette FormationAntineoplastic Combined Chemotherapy ProtocolsChromosomes, Human, 6-12 and XAnisocoriaPhiladelphia ChromosomeKaryotypingDNA, NeoplasmCorneal PerforationLeukemia Virus, MurineLymphocytesBlast CrisisCladribineChromosome AberrationsTranslocation, GeneticAntigens, NeoplasmTumor Cells, CulturedAntigens, CD5DNA NucleotidylexotransferaseAcute DiseaseRecurrenceT-LymphocytesAntigens, CD38Fusion Proteins, bcr-ablCyclophosphamideLeukemia, MyeloidAntibodies, MonoclonalImmunoglobulin Variable RegionTreatment OutcomeDrug Resistance, NeoplasmChromosomes, Human, Pair 14NeprilysinFlow CytometryNeoplasm ProteinsDaunorubicinAntigens, SurfaceBone Marrow TransplantationPrednisoneMutationBase SequenceLeukemia, Prolymphocytic, T-CellSurvival AnalysisCyclin-Dependent Kinase Inhibitor p15Leukemia, Monocytic, AcuteTime FactorsAntibodies, Monoclonal, Murine-DerivedMolecular Sequence DataLeukemia, Large Granular LymphocyticChromosomes, Human, Pair 9DexamethasoneDrug Administration SchedulePolymerase Chain ReactionImmunophenotypingSurvival RateChromosomes, Human, Pair 13Leukemia L1210Salvage TherapyMoloney murine leukemia virusAntibodies, NeoplasmApoptosisHematologic NeoplasmsCell Transformation, NeoplasticGenes, Immunoglobulin Heavy ChainLeukemia, ProlymphocyticProto-Oncogene ProteinsLymphocytosisClinical Trials as Topic